Sun and Singletrack: Test Riding the Salsa Timberjack NX1 27.5+ Bike Ashley Brown|May 7, 2018 Far from overcast Seattle, east of the Columbia River, sits the community of Ephrata. And just outside the small town, 20 miles of singletrack at Beezley Hills Preserve beckon, making the area a mountain biking destination. Our riders explored the trails on the Salsa Timberjack NX1 27.5+ hardtail.